Flanged bearing



.lm1.3o,1945. f G HQKENDA'LL' 2,368,549

FLA'NGED BEARIG 4 Filed Jan. 15, 1944 e sheets-smet 1 ATTORNEYS A G. H: KENDALL Jan. 3o; 1945, l l FEANGED Brumm@ Filed Jan.. 1s, 194.4 l s swapssheet 'zhui nu.

ATTORNEY;

Jan. 3o, 1945. H. KNDALI.' 2,368,549v

' l FLANGED BEARING Fi1ed.Jan. 13, 1944 s sheets-sheet s 6 Sheets-Sheet 4 n m Q @S muws ' Jan. 30, 1945. G. H. KENDALL f 368549 y FLANGED BEARING y Filed Jan. 13, 1944 6 Sheets-Sheet 5 faz' /73 F2912, A Hy.' @27.14. www

GEURGE HKENDALL Jan 30, 1945-. Q H, AKENDALL y 2,368,549

FLANGED BEARING Filed Jan. 13, 1944 6 Sheets-Shawl. 6 l* GEORGE H KE-NDALL 'I Patented Jall- 30 19451- FLANGED BEARING George H. Kendall, Noroton-Heights, Conn., assignor o f one-eighteenth to Elizabeth B. Dickson, one-eighteenth to T. C. Dickson, Jr., two-- elghteenths to E. W. Bassick, Jr., one-eighteenth to Christine N. Bassick, oneeightee'nth -to Marshall M. Bassick, one-eighteenth to- Paulina M. Bassick, one-eighteenth to. Grace- M. Bassick, and one-eighteenth to 3E.' W. Bassick, all of Bridgeport, Conn. l

Application January 13, 1944, serial No. 518,190 12 claims. (c1. 30s- 178) This invention relates to antlfriction bearings for various machines including vball bearings for small size applications such for example as small motor and generator antifriction bearing structures, particularly high speed devices of this type, as Well as heavy duty types of .bearings such as the various so-called roller type of bearings using fiat or cylindrical, tapered and similar types of rollers, and has for an object to provide an improved and simplied construction which will eliminate the multiplicity of chucking errors involved in the manufacture and mounting of the standard type of antifriction bearings now generally employed for these devices, and particularly to form a. construction in which the supf porting and locating surfaces for the bearing are in egactlalignment with the bearing raceway surfaces; that is,'to provide a substantially one-` pece construction in which the errors of eccentricity of a plurality of parts which donot have their high Points of eccentricity at the same line of assembly are eliminated. In the same way the errors of wobble of each of a plurality of parts lare eliminated.

The primary object `is to provide a bimaterial exact radial and axial concentric alignment with the raceway or track surface for the rolling elements.

Another object is to eliminate cooking of niebearing outer ring in the machine housing or frame bore, which is a common fault of the bearings now generally employed for these devices.

A further object is to provide aconstructionl in which a large number of the Ymany machining operations in making the bearings and housing or frame ts, etc., are greatly reduced or elimi- .the accuracy'with a much smaller percentag..e of

which onehsection of the housing or frame has a supporting surface accurately located and aligned with respect to the axis of the shaft and al section of the housing forming a part of the antifriction bearing is provided with a complementary locating surface accurately positioned and .aligned with respect to the track or raceway for the rollconstruction in which. the supporting surface is in thereof showing a slightmodication;

ing elements. 'I hat is, this locating surface is in exact radial and axial concentric alignment with the track or racewayso that when this section is mounted on the supporting surface the raceway or track is Lautomatically accurately positioned and aligned with-'respect to the housing and the shaft.

With the foregoing and other objects in view,

I have devised a construction some embodiments of. which are illustrated .in the accompanying drawings forming ia partof this specication, it being, however, understood that the invention is not limited to the specific constructions and arrangements shown but may involve various changes and modificationswithin the scope of the invention.

In these drawings:

Fig. l is a vertical sectionv through a portion of the housing of a typical high speed vertical axis fanmotor showing how my improved construction may be incorporated therein;

Fig, 2 is a similar vsection through a portion Fig. 3 isa longitudinal section through one type of a horizontal high speed motor with my invention; I

Fig. 4 is a detail section through a. portion vof the bearing showing a slight modification;

Fig. 5 is a similar section showing another Y slightmodication;

Figs.v 6 to 10show *how the invention may be employed in diierent types of machinery,l such y as farm machinery on combines, tractors, threshreiections, but also greatly Areducing the cost of the bearingand its assembly in the housing or themotor, generator, or other frame structure of machine.

;. A still further object isto provide antifriction mountings for theshafts of various devices, particularly automobile generators and similar de vices, in which the antifrction bearing construction a. part of the housing or frame construc- Another object is to form 'a construction inV tion ofthe device, such for example as the autoers, etc., as well as on machine tools and process machinery and so forth, to hold and locate shafts of all kinds in a machine housing or frame, andA wherenecessary to .allow for expansion, shift or weave of machinery in operation. These include heavy duty applications. Y

Fig. 6 is a. section througha portion of an opposed mounting 'for a shaft showing the bearing and a portion of the machine housingor frame at one end ofthe shaft; Y

similar view showing the bearing d of the shaft;

Fig. 8 is a. similar section of a portion of a. spherical roller type of bearing;

Fig. 9 is a similar section of a oating bearing;

but using flat or cylindrical rollers; A

Fig. 11 is a partial side elevation and a'partial section of one of the more popular types of automobile generators ore starting motors nowgenerally employed, showing my improved construction applied thereto;

Fig. 12 is a longitudinal section through the combined housing section and bearing at one end of the housing;

Fig. 13 is a similar section showing a somewhat modiiied'construction of the combined housing section and bearing;

Fig. 14 is a. similar section of another modified construction, and y Figs. 15 and 16 are sections through further modified constructions showing how the mounting flange of the bearing forming also the end frame of the machine or motor may be given various shapes for design purposes and also locate the raceway at practically any desired loca-l tion to one side or laterally of the plane of the mounting and locating surfaces. y

'I'his application is a. continuation in part of my prior applications Serial No. 357,107, led September 17, 1940; Serial No. 408,267, led August 25, 1941; Serial No. 429,876, filed February 7, 1942, and Serial No. 429,878, filed February 7,

In Figs. 1 to 5 and 1l to 16 of the drawings a ball bearing is illustrated, but the construction is equallyadapted for use with any type of ball bearing, either single or double row, and all types of roller bearings, such for example as a-t or cylindrical rollers, tapered, thrust, or any other type as may be best suited to` particular applications.

'I'he present standardized antifriction bearing construction consists of two special alloy steel rings between which the rolling elements run land hardened and normalized to-.pr'oduce an extremely hard surface for the balls or other roll- This extreme degreeof hardness was found to be of rst importance to carry the rated loadr of the bearing and as necessary to prevent damage to the ring raceways by denting from the ball or roller, or by imprinting from them through roughhandling or abuse of the equipment in which the bearing was mounted. This will be readily apparent when it is realized that there I isa very small area of the ball or roller in contact with the raceway surface' which must carry the load imposed. Y The manufacture of these bearings involves y turning the bearing rings of very tough steel from involving a large number of parts, a common` structure involving a Vcupped type mounting including a number of stamped, drawn and formed:

parts, which require a number of chucking and other operations, not only in maufacturing but also in assembling. These multiple operations introduce many errors and variables, such for example as those of wobble and eccentricity i ing elements to roll upon in carrying the load.

which are cumulative ne show up in the nn. ished assembly. These obviously make it very difficult or next to impossible to assure -exact alignment of the bearing ring and accurate mounting of the bearing in the housing in relation to the other parts, and it will be evident that with the small variations of so many parts the manufacturing burden of -holdlng tolerances on themv is enormous.

My invention eliminates the greater proportion of these variations and diiiculties vboth in manufacturing and assembling. I have found that a raceway surface can Ahe provided and maintained at the present necessary degree of hardness 'in a ring of the special tough steel of a thickness, asr provided by the stress formulas of Streibeck and Hertz, to carry the rolling load,

and that the small balance of the usual size bearingring shape can be made of softer and more readily workable materialV than the tough machining alloy steel at present used in thesolid bearing members, as the load carried by the race-v way ring would. be distributed over large areas.- Because of this construction the remaining portion of the bearing carrying the raceway ring can be formed or molded and thus extended to the shape and size of the mounting for the bearing, which may be directly located and mounted on the housing of the motor or generator, or machine housing or frame.

Thus this raceway ring of tough hardened steel or similar material can be cast or molded in `a supporting or mounting ring member, which is also formed with a mounting iiange or similar portion having a face or surface accurately mounting ysurface on .the housing or frame, so

that the simple operation of placing this ring assembly and mounting it'on such surface on the housing or frame may be easily and quickly performed and -will insure accurate and proper locating and aligning of the bearing, and particularly the raceway for the rolling elements, in the housing or frame and in relation to the l other elements of the motor or machine. Thus this raceway ring'of tough hardenedA steel or ing machine, plastic molding machine, by the similar material can becast or molded in a supporting or mounting ring member in a die-castpermanent mold method, or the centrifugal mold' method, .to producean integral bearing ring which may be directly. mounted and accurately located in the housing or frameand having an insert raceway ring of the necessary hardness and toughness. Thispermits the use of softer andcheaper material for the cast or molded or otherwise formed ring support, and the insert raceway ring of tough hardened steel or similar material can be cast or -molded into'` this mateirial or otherwise permanently bonded thereto l.and properly and accurately positioned and anchored in or bonded to the supporting material by the casting andA molding operation, or bonded by some other means to 'apreformed support-e ing andV mounting ring member, such for ex; ample as copper brazing in a controlled atmosphere. This construction eliminates a large s number ot chuckingand finishing operations required in making the 'standard antifriction bearins, insuring greater accuracy-With less dif-v iiculty Vand liability of error, particularly the- 4proper locating of the raceway for the rolling elements with respect to finished surfaces of thehousing or frame, giving a better and more reliable construction and one which can be manufactured and assembled at much less cost. This j is particularly importantas giving quiet, smooth and vibationless operation at high speeds.

'Referring tothe drawings, Fig. 1 shows this construction as applied to a typical high speed vertical fan motor. Only a portion of the housing and fan is shown to illustrate the construction, the remainder being broken away to sim- `pliiy the drawings. In this motor the rotor is indicated at I running within the stator elements II mounted in the section I2 of the enclosing housing. The motor may be any D. C. or alternating current motor, the member I0 being the armature having its windings suitably connected to the segments of the commutator sure. 'I'his material may be cast or molded about the ring in any suitable manner, such for example as in die-cast molds in die-casting mahines, suitable molds in plastic molding ma'- I3 rotating with th`e armature, and the Istator II comprises the eld magnets and the exciting coils. The brushes and other elements are not shown. The rotor is on the shaft I4 whichextends through, the lower end walll or section I5 of the housing and carries any suitable type of fan I6. In this type of motor the upper end II of the shaft is usually'mounted in a self-lining oilless bearing I8 in a suitable cup mounting I9.l

The lower bearing is an antifrictionY bearing mounted in the end section I5 of the housing.

This section has accurately finished annular surfaces and 2I to't similarly finished surfaces on the end of the housing section l2 to accurately mount the end section in the main body section, and the sectionsthen are secured together by any suitable screws or bolts,`not shown. The section I2 may also have a suitablemounting flange 22 for supporting the whole assembly on a suitable mounting.

The end section I5 has a mounting surface.

23 bored and nished in exact or laccurate relation and alignment to the surfaces 20 and 2|, and also with relation to the opening 24 through' this end section. This surface surrounds the opening and extends transversely of the axis of the shaft |4 and is at right angles thereto. The

outer portion oi the antifriction bearing comprises the raceway ring 25 and the supporting and .backing ring section 26, the insert ring 25 forming a raceway track 21 for the balls or other rolling elements 28. This ring 25 is mounted in and permanently bonded to the ring section 2.6. -It is ordinarily made of the special tough steel alloys now generally employed for the ring members of the standard balland roller bearings, and Awhich can be treated togive the necessary hardness to the surface on which the rolling elements roll. These rings can be out from steel tubing of the proper size and formed to 4shape or they may be made from strip steel rolled into a circle and welded at the abutting ends to make a one-piece solid ring, or made chines, by casting in permanent molds, by ,casting by centrifugal mold methods or powderedmetal pressure molding or casting. It is preferred that the surface of the insert-ring 25 at the opposite side from the rolling track for the balls or other rolling elementsbe knurled or otherwise roughened, as indicated at 29, so that the cast or molded material will-run into the depressions in theknurled or roughened surface to form a better bond between the insert raceway ring and the backingv up or mounting material. Thus the raceway ringV is permanently bonded to the backing and supporting ring section so that it cannot be shifted or removed.A

`Another Way in which the ring may be mounted tion 30 and projecting laterally outward therelfrom at the outer side thereof.

l This, ange has a mounting face or surface 32 accurately positloned and aligned with respect to the insert ring 25 and particularly the raceway surface21 I thereof, and this accurate relative location and alignment of the two surfaces 32 and `21 can be readily secured and maintained in the molding'l or casting operation with practically no nishing operation. In the final nishing the flange 3I can be clamped in theI chuck or holder or against the table of the machine and'then the track surface 21 ground to the desired nish and size. Thus with this 'construction the tracksurface can be readily nished in exact radial and axial concentric alignment with the mounting surface 3,2, or vice versa, th'e surface 32 is located in exact radial and axial concentric alignment with the tracksurface 21, because the required finishing may be ldone with'a single chucking operation, or in a single set up. The assembled bearing section comprising the mem-A bers 25 and 26 can be quickly and accurately mounted in the housing member I5 by merely placing the ange on the mounting surfaces 23 from lat wire or sheet, or seamless swaged or welded pipe or tubing, which illustrate some of the possible forms of fabrication. They can also be made by colcl forming,or hot or cold steel fused at the ends to make a fully continuousring, by stamping, turning or forging methods, etc..

quantity, application, or condition of manufacture. The ring is properly finished and hardened and ,then is heldin the properv location in the mold by suitable holding and-locatingl means.'

and the other material formingthe backing` and supporting material of the member 26 is poured into the mold about the ring with suitable'pres- 'as may best lend litself to the particular size,

and securing it thereon by any suitablenumber of screws 33. ,The clearance 34 between the opening 24 in the end wall I5 and the ring portion 30 is exaggerated on the drawings, it being preferably very small, only two or three thou j sandths of .an inch. It therefore requires only rough nishing and doesnot equire accurate machining, and the opening 4 acts as a rough centering means for the bearing at Ithe time of assembly. 'Ifhe surface 35 -of the housing'at the rim of the flange'3I has a diameter to give about the .same clearance land `therefore no finishing machine work is necessary. With these clearances the bearing element is accu-' rately located by suitable locating pins 3G and the screws hold it in this position.y The boredsurface 23 is in accurate and exact alignmentI with, or that is, exactly and properly located with respect to the two end surfaces 20 and v2| of the housing, and proper aligningjof the sur- 'face- 32 on the flange 3| with respect to thev elements located and mounted therein.

If desired, there may be lleft no clearanceat 34 or 35. In other words, the surfaces 34 and 35 can b e accurately machined so that either one or both could be used as the accurate centering means for the bearing while thel surfaces 23 and 32 accurately locate and line up the bearing vin the other direction. This is illustrated in Fig. 2 where there is no clearance shown between the opening 24 or the surface 35 and the ring member 26. An especially important feature is the locating of the surface 32 in exact," alignment or desired relation with respect to the raceway 21. The contacting surfaces at 20 and 2l on the housing section 'I5 are bored and finished at the same time with the surface 23 so that they are in exact alignment, parallel and concentric.

The inner portion of the antifriction bearing comprises the insert ring 31, which may be the same as the ring 35 onlyreversed, and the backing and supporting member 38 cast or molded about the ring 31 and permanently bonded thereto in the manner described in the applications above identified. 'I'his inner section is tion over that ofthe raceway ring is supplied one-piece bearings, so that this insert ring is capable of carrying the normal rolling Lload independently of the backing' or supporting mounted on the shaft i4 and of course com- Y pletes the inner portion of the antifriction bearing. In this type of device a rubber or other compressible element 39 is mounted between the bearing and the member 40 mounted permanently on the shaft to allow for longitudinal expansion and contraction clue to changes of tem- Y perature or other reasons, or it could be spring washers 4I. A suitable lubricant may be packed and retained in the bearing by suitable seals 42 which will also keep out dirt and fluids which might interfere with proper operation of the bearing. The balls 28 are shown in the usual retainer 43 such as used in standard ball and roller bearings, comprising for example two strips of steel 'stamped' from sheet metal and formed and secured together by rivets or other suitable means (not shown) to retain the balls in proper alignment. These retainer elements can be made from strip metal formed Yto shape and their free ends welded or soldered to make continuous'rings and eliminate the waste in,

' tablished and accepted by all industries over the entire world. Y These established sizes therefore do not require a bearing ring thickness as great as when the sizes were initially established. A

small part of the standard sized ring may therefore be made of other material without alecting the proper raceway load-carrying function. Thus in this construction the small balance (repmember.

It will be seen that the insert ring 25 forming a .raceway for the rolling elements is of less width than thesupporting or backing member 26, so that the sides 46 of the insert ring are spaced inwardly from the sides 41 and 48 of the backing member. It will also be noted that the diameter of the face 49 of the insert ring on which the raceway or rolling surface 21 is located is of a different diameter from that of the adjacent surfaces 50 of the Vbacking or supporting ring member with which it is associated, so that this face of the insert ring is spaced above or inwardly of that ofthe backing member. This arrangement eliminates the necessity of accurately finishing and lining-up the side surfaces 4E of the insert ring, doing away with a large number of cliucking operations required in 1inishing the one-piece solid bearing now generally employed. The elimination of a large number of chucking operations thus greatly reduces the cost of manufacture, increases the percentage of bearings which are constructed to the proper dimensions, thus decreasing the percentage of rejected bearings, and secures the necessary accuraey with less diineulty.

Because the face 49 having the track or raceway is spaced above the adjacent surfaces 50 of the backing member a portion of each side of the insert ring is exposed and not covered by the metal or material of the backing member. These uncovered surfaces are important as providing gripping surfaces to be properly gripped and hold the insert rin-g in the die by suitable holding means during the casting and molding operation. and also for later grinding and finishing of the raceway. If the insert ring is merely slid or forcedonto the die pin, it is very apt not to be held in the proper position during the casting or molding operation, because as soon as the hot metal or other material hits it it is heated and ekpands faster than thelarge bulk of the die pm, and therefore the ring loosens on this pin and is liable to be tilted sideways and otherwise forced out of position by the pressure of the material or 'the metal forced into the mold. With this present construction the insert ring can be gripped and held in the mold by itsA opposite sides 46 with no danger of its being loosened by heat- `ing from the die-casting metal or other material and then forced out of position by the pressure of this metal or vother molding material.

Because the ring can be so gripped and held. either during molding or casting operations or for nishing of the raceway, a. large number 'of chucking operations are avoide'd which ,are necessary in the solid or one-piece bearing n'ow generally employed, and also required of the complicated multi-piece mounting now generally employed for mounting the standard bearing in the resented by the portion 44) of the standard sec- 7l motor or generator hOuSingS. thus doing away with a large number of variables in the standard bearing and its mounting that1cause such unsatisfactory performance as to lead to rejection by the customer. Basically, these variables are due to the many chucking operations required for the many step-by-step operations needed in finishing the bearing ring of the present standard methods of ball bearing manufacture, and also the variables and errors caused'by the many chucking and finishing operations in making the multiple parts o f the mounting forvthese bearings in the motor or -generator housing. These errors or variables are cumulative, resulting in misa-lignment, cooking of the bearing wobble andr eccentricity, etc. This alsoapplies to all .types of ball, roller and thrust bearings. It will be evident that the diameter surfaces of the rings must be parallel, that the ring surfaces must be parallel, and that the raceways must be parallel with both faces and diameter, and that all must be concentric (not eccentric) with each other for uniform or successful bearing performance. If

these qualities are not rigidly maintained, wobble' .of the rings, of the faces, of the diameters, or

other errors or combinations of these faults will quickly cause bearing failure and wrecking of 'the bearing. i

With the present construction the bearing may be gripped and held by the surfaces opposite sides of the track or raceway ring during the final finishing and grindingl of the mounting surface 32 and the track surface \2|. Therefore these surfaces can be readily `finished in exact radial and axial concentric alignment with each other as they are finished in the same chucking operation. The mounting surface is therefore in exact radial and axial vconcentric alignment with the track surface.

In the present construction, the backing-up member 26 and the raceway ring 25 form a standard proportioned bearing with the backing or outer section cast, molded or bonded to the raceway ring and having integral therewith theA mounting'fiange so that the mounting surface is' exactly positioned with reference to the raceway' surface for the rolling elements. This is a simple construction in which a large proportion of Vthe' finishing operations required in the usual construction of the bearing -ring and the mounting for the bearing in the housing are eliminated. At high speed this invention provides a far greater degree of smoothness of operation, as a great ,proportion of all factors of machine error, such for example as wobble and eccentricity, are entirely eliminated.

Fig. 3 shows how this construction can be employed in high speed horizontal motors lor generators, the construction being basically the same as that of Fig. 1. In this device the armature is indicated at 5| running in thefeld of elements 52 in the housing comprising the main section 53 and the end section 54. This section has bored and finished angular surfaces 55 and 56 to receive and ,fit similar finished surfaces on the'end of the section 53, the two sections of the housing being secured together by suitable `screws or bolts (not shown). The end section 54 of the housing has a, cylindrical opening 5T concentric with the surfacesI 55 and 56 and corresponding to the opening 24 in Fig.` 1. YSinroun'ding this opening is the finishedsupporting surface 58 corresponding to the Fig. 1.

The outer section of the antifriction bearing comprises the insert raceway ring 25 mounted 46 on the supporting surface 23 of corresponding to the flange portion 3| of Fig. 1.

This flange portion has the finished face or surface 62 exactly and accurately positioned and aligned with respect to the raceway 21 to t l0 onto the supporting surface 58, this surface 62 corresponding to the surface 32 of the first arrangement, and this flange portion is secured to the housing by any suitable number of screws 63. There may be a slight clearance 64 between the outer' ring section and the opening 51, the same as in the first-form, or the opening 51 may be accurately bored and nished'to fit the outer surface of the ring section 60 to accurately center and .position it, as indicated in Fig. 4.

that of Fig. 1 and the section 59 is molded or cast or otherwise formed about the raceway ring and permanently bonded thereto, the same as described in connection with Fig. 1, the sur- 25 face 62 being accurately positioned and aligned with respect lto .the raceway 2l during manufacture in the same manner. of the housing is also bored and finished at the same time with the surfaces 55 and 56 so thatil iiis accurately located and aligned with respect to these surfaces, and therefore when mounting the bearing section in the housing the raceway is automatically 'accurately mounted in the proper relation and alignment with the finished surfaces of the housing and accurately entered with respect thereto.,

In this construction the same construction Aof bearing is used for the otherl end 65 of the shaft 66, and it ismounted in the opposite end of 46. the section 53 of the housing in the same man- In constructions where two ball or roller bear- 55/ ings of any type are used it is necessary that somecompressible means be provided to take up part variations and expansions as may occur duringoperation or from change of temperature.

Such an element is shown at 10. It may be a spring orresilient material such as rubber, etc. In Figs. 6 to'10 are shown examples of how the invention may be employed in different Atypes of machinery, su'ch for example as farm machinery including combines, tractors, threshers, etc.,

as well as on machine tools and process machinery and the like to hold and locate shafts of all kinds in a machine housing or frame, or other supporting unit, and where necessary to allow for expansion land shift or weave of machinery in operation. The-invention does not vchange the basic principles of these mountings, but makes them more simple and easy to use-and to assemble in the eld as well as in the shops vwhere they are initially manufactured or used. Standard bearing proportions are used with back- The bearing is thus substantially the same as v The surface- 58 ner as shown at the right in Fig. 3'. In this con- Y The mounting surface 66 ing rings as part of the outer ring section of the-bearing-and .made to the shape that is most adapted for the particular application. In these applications, as wellas those disclosed inFigs. 1 to 5, considerable machine work in manufacturing machining operations as well as in assembly fitting operations is completely eliminated by these constructions.

Fig.' 6 illustrates the mounting at one end of a shaft forming an opposed mounting for the shaft S. The construction of Fig. 7 shows the mounting at the other end of the shaft, which is the same as Fig. 6 except that it is reversed. In this construction the adjustment and'thrust are assumed by one or both of the bearings which are of the taper roller type. In these .figures the frame or housing of the machine is indicated at 14 which is provided with the supporting surface 15 bored and finished so that it is accurately positioned and aligned with respect to the shaft and corresponds to the supporting surfaces 23, 58, etc. of Figs. 1 to 5. The antifriction bearing comprises inner and outer sections mounted on the shaft and the housing frame respectively, the outer section comprising the raceway ring 16 having the track surface 11 on which the tapered rolling elements 18 roll, and which ring corresponds to ring 25 of the first figures. This is mounted and located in a supporting and backing member 19 corresponding to the supporting and backing members 30, 59, 61 and 1| ofthe first figures. This includes a ring portion' 80 embracing the ring 16 and permanently bonded thereto, the ring 16 being of a thickness to carry the normal rolling load and the portion 80 being of a thickness to bring the bearing to the standard size of the single ring solid bearing. Integral with this ring portion is a flange portion 8| provided with a locating face or surface 82 accurately positioned and aligned with the ring 16 and particularly with the track or raceway 11 and it is seated on the supporting surface 15 to accurately locate and position the bearing in the housing or frame. It is secured or clamped to the housing or frame 14 of the machine by any suitable means such for example inclined taper of the rollers and track surfaces can' take longitudinal `thrust as well as radial bearing and also Will permit slight longitudinal adjustment. The inner ring section of the bearing is made in the same way as that described in the' pricr'applications' abovenoted, and includes'A the track ring 9| and the backing and support.- ing member 92. The track surface 9|a however is inclined ortapered tocorrespond with the type of roller and may have flanges or lips 93 at the `opposite ends to retain the rollers in the bearing,

there being preferably, however, la clearance between the ends of the rollers and the flanges. The rollers may be in the usual cage or retainer 18a. j y y As above indicated, the construction of Fig. 7 is the same as that of Fig. 6 except reversed and therefore the same reference characters Vare Fig. 10 is the same as Figs. 6 and 7 except flat or cylindrical rollers 94 are used, and in this case also Vclearance is left between the ends ofv these rollers and the lips or flanges 95 on the inner raceway ring 96 to allow for expansion or other factors requiring some lateral play in the mount-V ing. The track surface 91 on the outer ring 98 may be fiat or cylindrical, also permitting a certain amount of longitudinal adjustment, and permitting the bearing with the shaft 'to be inserted or withdrawn through the outer bearing section in mounting or dismounting.` The backas the screws 83. There may be a slight clearance between the outer surface 84 of the ring portion 80 and the inner surface 85 of the frame or housing 14, or this surface can be accurately finished, located and aligned with respect to the track or raceway 11 and the surface 85 lalso accurately finished, located and aligned with respect to the shaft, so that the cooperation of the two surfaces assists in locating and supporting-the bearing.

As in the rst forms, the supporting and back-- .16 having the track or raceway 11 is of different diameter than the adjacent corresponding surface 90 of the backing member so that the side walls 86 and 81 project above the surface 90 to form gripping surfaces or shoulders for holding the ring accurately in the dies during the molding or casting operation or the raceway or track surface, the same as described in connection with Figs. 1 to 5. The

while finishing.

ing up member 19- is the sameas that of Figs. G

and 7 and this may be made in the 4same way.

Way ring |00 having the curved track orrace Way surface |0|, which may be a portion of a sphere on which the spherical rollers |02 run. The backing and supporting member 19 for the ring |00 is the sameas that of Fig. 6 and is made and mounted in the same way. It will be noted that the ring |00 is of less width than the backing member 19 and the inner face of the ring on which the surface |0| is located is of different g diameter than the face or surface |03 so as to provide shoulders |04 at the opposite ends `of the raceway ring for gripping and holding it in, 'manufacturing or finishing' operations, the same as described in connection with the otherl fig ures. The inner bearing section on the shaft |05 includes trackway ring |06 mounted and bonded to the backing up and supporting member |01, as described in the prior Iapplications. has two trackway surfaces |08 for the rolling elements, and the elements may be kept at proper spacing by the separators |09.

In the self-contained double row bearing, such for example as shown in Fig. 8, this invention makes-possible great economies in the limitedspace available insuchfcrampedv design units'as modern magnetos for engine or aircraft use. This permits them to be clamped and minutely located or adjusted as one piece.-

In al1 forms-shims may be addedat 'i5 between shaft should expansion require it. This raceway ringisv shown at I vhaving a flat or cylindrical track or raceway surface and is` mounted in and permanently bonded to the cast, molded or otherwise manufactured backingup and supporting member ||2 corresponding -to the member 19 of the other forms. In this case two fiat' or cylindrical rollers ||3 are kept in proper relation by the separators H4 and the inner bearing section comprising the raceway'or track ring ||5 is mounted in and bonded to the backing up and supporting member ||6 mounted on the shaft in the same manner as described in connection with the other figures.l This ring has two tracks or raceways ||8 one for each.of the two. sets of rollers I3, with lips or flanges I I8 and at their opposite sides to limit lateral movement ofthe rollers.

In all the cases illustrated the supporting surfaces are in exact alignment-and accurately located with respect to the-shaft and the raceway or' trackway surfaces, thus eliminatingl a great part of the machining errors of a multiplicity of chucking operations required in the conventional bearing so that perfect functioning of the Ibearing is assured.

In the case of floating type bearings suchas 'alignment with the raceway surface, marking a new and distinct improvement in bearing' mount' ing practice. In all the forms the supporting and locating surfaces are in exact alignment with the raceway surfaces and permit rigid fastening of' the ring and bearingto the supportingframework, machine or holding unit.

In all the forms shown, instead of having the ing circulation of cooling air through'the device.' A.As pointed out in connection with Figs. 1 and 3,

vin present constructions, due to the cost of mak- ,ing and assembling and difficulty in getting'proper alignment for 4smooth and proper operation, only one antifriction bearing is employed, lthat being at the pulley or operating'end, while a standard plain bearing is used for the opposite end of the shaft. The usual mounting for' this antifriction bearing in the 4housingcomprises a number of separate parts, usually formed stampings, which parts are subject to considerable variation at assembly because the various surfaces of these separate parts cannot be perfectly aligned with the raceways of the standard antifriction bearing (which ordinari-lycomprise inner and outer solid metal rings' having opposed raceways for the rolling elements running between them) and-the 1inished bore of the housing in which it is tofbe noisy operation and rejection on 'theproduction' line of a considerable number of the units,l which ofcourse causes considerable loss and /incre'ases the cost of production. Thus for example, there 'v tight the drawing up of the clamp bolts does not -shown in Fig. 9, great convenience is secured for l produce an even degree of tightnessto assure parallelityand .proper alignment of the bearing.`

improved construction.

insert ring 25, 16, |00 ,and ||0 molded or cast in the outer backing orfsupporting member, itcan be located and accurately aligned in a similarly shaped preformed member 1| as shown in Figj,

and then permanently 'bonded .to this member at the contactingsurfaces by copper brazing 1n a controlled atmosphere, as described in the prior vapplications above noted. This bearing has an integral flange 12 corresponding to the flanges 3| and 6| accurately located with the. finished surface 'I3 for mounting on the accurately positioned supporting surface of the housing, the same as in the other forms shown- In Figs. ll `rto 16 is shown how the integral mounting flange for the raceway ring maybe ex- Another advantage of my invention. is the decrease' of time required to assemble a generator or motor over that of the present constructionwith its multiplicity of parts.

l "My invention eliminates the greaterproportion j of these variations and difculties both'in manu- -facturing and assembling. Because of this novel the .portion of the'bearing corresponding to the mounting flange of the forms of Figs. 1 to 10 may be extended and so shaped as to form a section tended and shaped toform the end frame of the machine or device with which it is used, such for example as the end frame section ofan automobile generator or motor housing.

. mounting or locating faceor'surface may .be

1 or part of the housing or frame of the machine and more particularlyfom the end frameof the housing or the end section of the frame of the machine. Thus this raceway ring of tough hardened steel or similar material can be cast or molded in ja supporting or mounting rin-g member which forms an integral Apart of a section of the housing or frame and which section may be provided y with a locating face or lsurface accurately located and aligned with respect to the s urface of the raceway or track for the rolling elements. This seated on and by thisope'ration accurately aligned and located on an accurately located and aligned 4 mounting surface on the main or body section of the housingor frame.' so thatthe simpleV oper-v ation of placing this housing or frame section comprising the ring assembly and mounting it on such mounting surf-ace on the main housing or frame may be easily and quickly performed and will insure accurate and proper locatingand aligning of the bearing, and particularly the raceway or track for the rolling elements, in the housing or frame and in relation to the other elements of the motor or machine. raceway ring of tough hardened steel or similar material can be cast or molded in a section of the housing or frame which forms a supporting or mounting ring member for the raceway ring, and thls'can be done in a die-casting machine, plastic molding machine, by the permanent mold method. or the centrifugal mold method to produce an integral bearing ring construction which may be directly mounted and accurately located in the housing or frame, and having an insert raceway or track ring of the necessary hardness and toughness. This permits the use of softer and cheaper material for the cast or molded or otherwise formed housing or frame section forming the ring support, and the insert raceway ring of tough hardened steel or similar material'can be cast or molded into this material or otherwise permanently bonded thereto and properly and accurately positioned in or bonded to the supporting material by the casting and molding operation, or bonded by some other means to a preformed housing or frame section comprising a` supporting and mounting rin'g` member, such for example as copper braalng in a controlled atmosphere. This construction eliminates a large number of chucking and finishing operations required in making and mounting the standard antifriction bearing, insuring greater accuracy with less diiculty and liability of error, particularly the proper locating of the raceway or track for the rolling elements with respect to the 1inished surfaces of the housing or frame and the,

cooperating elements mounted therein, giving a better and more reliable construction and one Whichfcan Ibe manufactured and assembled at much less cost. This is particularly important as giving quiet, smooth and vibrationless operation atA high speeds.

Thus the main housing section |2| of the generator or motor shown is provided with bored and nished supporting surfaces |26 and |21 accurately located and aligned with respect to the axis of the rotor and shaft to be used in the housing.

vThe end section of the housing indicated at |28 is .provided with complementary locating andV mounting faces or surfaces |29 and |30. The section |28 forms an integral part of the anti-friction bearing for the shaft, this bearing including a raceway or track ring 25, which forms a raceway or track-21 for the balls or other rolling elements 28. This ring 25 ismounted in and is permanently bonded to` the section |28 of the housing orlframe. It is ordinarily made of the special tough steel alloys now generally employed for the ring members of the standard ball and Thus this the ring withsuitable pressure. This material may be cast or molded about the ring in any suitable manner, such for example as in die-cast molds in die-casting machines, suitable molds in plastic molding machines, by casting in permanent molds, by casting by 'centrifugal mold methods, or powdered metal pressure molding or casting. It is preferred that the surface of the insert ring 25 at the opposite side from the rolling track or raceway for' the balls or other rolling elements be knurled 0r otherwise roughened, as indicated at 29, so that the cast or molded material will run into the depressions in the knurled or roughened surface to form a. better bond between the insert raceway ring and the backing up or mounting material. Thus the raceway or track ring is permanently bonded to the backing and sup. porting section so that it cannot be shifted or removed. Another way in which the ring may be mounted and permanently bonded to the backing and supporting ring section forming a section of the housing or frame is by preforming the section and securing the ring thereto through copper brazing in a controlled or neutral atmosphere, as described in the prior applications above noted and as illustrated in Fig. 14 of the present drawings.

The backing and supporting member |28 includes a circular ring 'portion |3| andthe body portion |32 integral with the central ring portion |3|. This body portion has the locating or mounting surfaces |29 and |30 (which may be in any plane of the part' accurately positioned and aligned with respect to the insert ring 25, and particularly the raceway or track surface 21 thereof, and this accurate relative location and alignment of the surfaces |29, |30 and 21 can be readily secured in the molding or casting operation with practically no finishing operation. In the final finishing operation the housing or frame section |28 can be clamped in the chuck or holder or against the table of the machine, locating it by means of one or both of the surfaces |29 and |30 and thenthe track or raceway surface 21 accurately ground to the desired finish and size. In this Way the track surface may be radially located and nished in exact radial and axial concentric alignment with the mounting surfaces |29 and |30, as the ilnishing is done with a single chucking operation or set up. The assembled bearing and housing section |28 can be quickly and accurately mounted on the central housing or frame section |-2| by merely seating the surfaces |29 and |30 on the supporting surfaces |26 and |21 and the sections clamped and secured together by any suitable means'.` such as the bolts or screws |33. Therefore when the section |28 is assembled with the section |2| it is automatically accurately located and aligned with the finished surfaces of the `section |2| and the elements located and mounted therein, and particularly the raceway or track surface 21 is quickly and automatically accurately located and aligned with respect tol l the housing or frame within which it is mounted and thus the shaft is automatically accurately aligned and located.

The inner portion of theantifriction bearing 'comprises the insert ring 3l' (which may be the same as the ring 25 only reversed) and the backing and supporting member 3B cast or molded about the ring 31 and permanently bonded thereto in the manner described in the appli'- cations above identified. 'This inner section is V 2,368,549 'mounted lon Ithe shaft |23 and completes the in l ner portion of the antifriction bearing.

This construction eliminates the eccentricity and wobble troubles'encountered withistandard bearings as above described. The locating and mountingsurface's |29 and |30 are always exactly in perfect alignment with the bearing race'- way'oi' track 21 as theyjare on'the same piece,

' machined in exactly the same machine setting .inthe same manner.

The raceway of the inner ring 31.. is always in-perfect alignment with the 'bore |3'4.- Seals 42 can be employed to hold lubricant in the bearingso that the construction becomes a sealed cartridge, and needs practically no attention -for thousands of hours of service.

A sealed ,inlet for lubricant is shown at 42a., Costscan therefore be materially reduced to a point whereit becomes possible to use two ball or antifriotion bearings per generator or motor where only one could'formerly be used. This is illustrated in Fig.` 11, where two ball bearings are used on one generator. It is necessary to use a compressible element |35 at one end of the shaft to absorb expansion variables of the parts as well as part tolerance variation.f 'I'his element may he a wave spring, rubber or other simiflar compressible part. The balls 20 are shown in the usual cage or retainer 43 such as used Ain standard ball and roller bearings, comprising for example two strips of steel stamped from the rolling load as conservatively figured by the established formulas of Streibeck and Hertz for a standard solid one-piece bearing so that this insertring is capable of carrying the normal rolling load independently of the backing or supporting member.

It'will be seen that the insert ring 25 formu ing a raceway or track for the rolling elements is 4of Aless width than the" supporting or backing member or section |3| so that lthe sides |31 of the insert ring are spaced inwardly from the sides .|38 and |39 of the backing member. It will also` be noted. that the diameter of the face |40 ofthe insert ring on which the raceway or rollingsurface 21 is located is of a different diameter from that of the adjacent surfaces |4I'of the backing or supporting ring member |3| with which it is associated, so that this face of the insert ring is spaced above or'inwardly of `that of the backing member. This arrangement eliminates the necessity of accurately finishing and lining up the side surfaces V|31 of the insert ring, doing away sheet metal and formed and secured together by rivets or other suitable means (not shown) to retain the balls in'proper alignment;

This process and, construction u ses the same basic function' for its bimetallic and bimaterial construction as the present standardized antifriction bearing construction as'far as sizes and materials of the raceway, balls and retaining elements are. concerned. That is', no attempt is made toalter the function or performance of the balls or rolling elements.

The improved bearing steels of today make possible far greater load carrying capacity for a given bearing size load rating so successfully established and accepted by all industries overthe entire world. These established sizes therefore do not require a bearing ring thickness as great as when the sizes were initially established.l A small partof the standard sized ring may therefore be made of other material without affecting the 'propepraceway'load carrying function. vT'hus in this construction the small balwith a large number of chucking operations required in finishing the one-piece solid bearing now generally employed.. The elimination of a large number of chucking operations thus greatly reduces the cost of manufacture, increases the percentage of bearings which are constructed to the proper dimensions, thus decreasing the percentage'of rejected bearings, and secures the necessary accuracy with less difiiculty.

Because the face |40 carryingthe track or race- 'way is spaced above the adjacent surfaces HI of the backing member a portion of each side of the insert ring is exposed and lnot covered bythe metal or material of the backing member. These uncovered surfaces are impprtant as providing l gripping surfaces tooe properly gripped and hold ance (represented by the portion |3l) of the standard section overu that of the raceway ring is supplied by-.softer and more easily workable material yet fully capable of conservative support of a required load, `making possible major reduction inthe costof fabrication of the bearing including such as cylindrical, needle, spherical,

' conical or tapered rollers as well as balls. However, the; ring section |3| .need not bes. limited merely -to the-thickness to fill out and -bring the outside diameter .to the standard roller bear-- ing diameter for the `sizveh'and-load involved, as indicated in dotted lines'f`-|36,.Fig. 11 (and also the lother figures) .although this would be done if the saving of material and weight is an important consideration. In the showing on the drawings this-section |3| is shown considerably thicker to indicate f'how greater weight and strength may be secured if desired, as therev is` plenty of space surrounding the bearing for the extra material. y v

The insert ring 25 of hardened metal is made ofa thickness at its thinnest point l5 to carryl the insert ring in the die'by suitable-holding 4means during the casting and molding operations, and also -for later grinding and finishing of the raceway. If the insert ring is merely slid or forced onto the die. pin it is very apt not to be held in the proper position during the casting ormolding operation because as soon as the hot metal or other material hits it, it is heated and expands faster than the large bulk of the diepin,

and therefore thering loosens on this pin and is liable to be tilted sideways and otherwise forced out -of position by the pressure` of the material or the metal 'forced into the mold. With this presfornishing of the raceway, a large number of chucking operations Aare avoided which are necessary 1n the solid or one-piece bearing now generally employed, and also required of the complic cated multi-piece mounting now generally em` ployed for mounting the standard bearing 'in the4 motor or generator housings, thus doing away with a large number of variables in the standard bearing and its mopnting that cause such unsat isfactory performance as to lead to .rejection by the customer. Basically, these variables. are due to the many chucking operations required for the many stepfby-step operations needed in finishing the bearing ring of the present standard methods of ball bearing manufacture, andalso the variables and errors caused by the many chucking and finishing operations in making the multiple parts of the mounting for these bearings in the motor or generator housing. These errors or varfables are cumulative, resulting in misalignment, cooking of the bearing wobble and eccentricity, etc. This also applies to all types of ball, roller and thrust bearings.`c It will be evident that the diameter surfaces of the rings must be parallel,

that the ring surfaces must be parallel, and that the raceways must be parallel with both-faces and diameter, and that all must be concentric (not eccentric) with each other, for uniform or successful bearing performance. If these qualities are not rigidly maintained, wobble of the rings,` of the faces, of the diameters, or other errors of combinations of these faults will quickly cause bearing failure and wrecking of the bearing.

In the present construction, however, as indicated above, the backing up member |3| and the raceway ring may form a standard proportioned bearing with the backing or outer section cast, molded or bonded to-the raceway ring and 'forming in integral part of the section |28 of the housing or machine frame so that the mounting surfaces are exactly positioned and aligned with reference to the raceway surface for the rolling elements. This is a simple construction in which a large proportion of the finishing operation required in the usual construction of the bearing ring and mounting for the bearing in the housing are eliminated. At high speeds this invention provides a far'greater degree' of smoothness of is substantially the same as that just.describedv except that it may be of a lighter construction as the load at that end of the shaft is less, and it illustrates how the section of the housing or frame forming a part of the bearing may be made of different shapes to correspond with the machine or device, or that is, the specific application for which it `is to be used. In this case the section of the housing or frame forming the outer member or backing up and supporting member of the bearing is indicated at |42, which has the accuratelylocated and aligned locating and mounting surfaces |43 and |44 corresponding to the faces |30 and |29 of the membei' |25 and which seat on and cooperate with the accurately located and aligned surfaces |45 and |46 of the housing section |2| corresponding to surfaces |21 and |28 at the other end thereof. The antifriction bearing ring 25 is mounted in and permanently bonded to section |42 of the housing or frame the same as described in connection with the member |28 so that the surfaces |43 and |44 are accurately aligned and positioned with respect to the race- Way 21 the same as previously described, andthe central ring section |41 carrying this raceway ring corresponds to the section I3| of the member |28. Otherwise the construction is the same, maybe made in the same manner and, secures the same advantages.

In Fig. 13 is shown a sli-ghtly modified construction for the section of the housing or machine frame forming a part of the bearing corresponding to the members |28 and |42. In this case instead of the section |48 of the housing or fra-me forming a part of the bearing lbeing in one integral piece, it is made in two sections comprising an outer or ring section |49 and an inner ring section |50. The outerring section has the acing surfaces |29 and |30 to'seat on and cooperate with the surfaces |26 and |21 of the housing in mounting this section in the other housing section. It also has accurately located and aligned surfaces |5| and |52 cooperating with similarly accurately located and aligned surfaces |53 and |54 on the inner member or section |50, these surfaces being either directly on the body portion of the member or on the iiange |55 integral with the central ring portion |60. This portion |60 corresponds to the portion |3| of the member |28 and carries the raceway ring 25 and is permanently bonded to it the same as described in connection with Fig. l. The sections |49 and |50 are cast. molded or otherwise formed in exactly the same manner as described in connection with the member |28 and perform the same function, This is a great improvement over the standard mounting forthe standard solid bearing but does introduce a possi-ble additional error over the construction of Fig. 11 because of the extra surfaces to be accurately located `between the two sections |49 and |50. These sections are secured together by any suitable means suchas the screws |6| and the assembled bearing structure is secured to the other sections of the housing or frame by any suitable means, such for example as the bolts |33, as previously described. Mountframe forming the antifriction bearing. The A complete assembly |64 corresponds to theassembly |28 and is used in the same manner. It has the locating and mounting surfaces |30 and |29 accurately aligned and positioned, but instead of being a cast or molded construction the member |65 is blanked and drawn or formed from sheet metal of a suitable gauge, this operation also forming the ring section |66 corresponding to the jsection |3| of the member |28 in which the insert ring 25 is mounted and for which it forms a backing up and supporting member. nently bonded to the ring 25, but as the member |65, |66 is preformed it is bonded to the ring 25 preferably by copper brazing in a controlled or neutral atmosphere. This permanently bonds the ring to the backing up and supporting member so that they are in effect one integral structure. The ring 25 is narrower than the section |66 so that its side walls |31 are spaced inwardly of the side walls |61 and |68 Vof the backing up and supporting member. Also the face |40 being of less diameter than the inner face |69 is located above or inwardly of this inner face |69, thus .forming shoulders by which the ring 25 may be gripped and held during the assembling and iinishing operations to accurately locate and align the raceivay surface 21 with respect to the sursame manner, as for example by thebolts |33,

and to secure the proper strength and length of tapped opening separate bosses |10 may be brazed to the member |65. Similarly a pre- Itis also permaformed mounting lugI |1I may be brazed to the member |65 and |12 and theproperthickness of 'this lug be secured by brazing an additional member |13 to the member |12.

In Figs. 15 and 16 are shown examples of how generator, motorI or other machine housing and also the locating and mounting surfaces |29 and |30 may be located laterally spacedv practically any desired distance from the plane of the raceway ring and raceway surface. That is, the supvporting surfaces are not -only remote from the bearing location as in Figs.- 11 to 14, but they are also located in planes at a considerable distance laterally of the plane of the bearing. In other words, the supporting surfaces are not directly at the bearing location. The remote type of supporting surface assures exact alignment of the raceway surface 21 with the supporting surface.

In Fig. 15,t"ne flange and end frame |14 is in the form of an end bell for the housing |2I.

lIn Fig. 16 the ange and end frame |15 shows how this end frame may be shaped to continue the streamlined form of the motor or generator frame or housing |16. Streamlined motor frames or housings require offset end frames to allow for brush holders and so forth, and this type of end frame is effectively provided lby the construction shown. The outer end of the frame may be closed by a cap |11 to protect the bearing from dirt and moisture. ,The cap may be secured vby any suitable means, such for example as threading it `into the frame as indicated at |18. The

.frames |114 and |15 may be secured to the housing by any suitablemeans, such for example as the bolts |33 shown in Fig. 11 but omitted from Figs. 15,'and 16. l

Thus in each construction the insert raceway or track rings may be of tough hardened' steel or other suitable hardened metal. 'Ihe balance of the bearing members consisting of the backing up ring section and the integral mounting flange and the housing or frame member can be made of softer and more readily workable materials than the' tough hard alloy metal required for the insert raceway ring, as the load from these insert ,rings is distributed over large areas. Thus the backing and supporting, material for theinsert raceway ring to support and assist in"pre venting distortion of these rings as well as hold them accurately in the proper position can be of a softer alloyor other molded or cast material. This backing material may be of die casting materials and alloys such for example as zinc, magnesium, aluminum, brass or bronze alloys in comtion of heat away from the bearing under heavy operating conditions of load or speed than would be possible with non-metallic plastics or 'similar materials.

' -To produce the backing up members having inserted raceway rings the insert rings can be suitably held and accurately positioned in the dies or mold and the liquid or powdered metal poured or cast about them or molded under pressure to produce a finished ring formed accurately to size and the mounting surfaces accurately located and aligned, so that only sizing operations may be necessary. l

It is to be noted that this two-material ring construction wherein the raceway surface provides al very vhard standard surface for the balls or rollers of any type of bearing, may have the backlng ring or section of very light .material cast, molded or bonded to the raceway ring,

assuring the very lightest possible .weight for such construction applications as aircraft, as

well as decrease in the time required to manufacture and the amount of steel required in the manufacture, thereby conserving Vital materials which may be required for other purposes.

'I am, however, not limited to the use of metal for the backing-up or mountingrings or sections.

but may use othermolding materials, as liq u uids, powders or plastics under high pressure or Thus in addition to the by centrifugal force. metals and the alloys mentioned may be used acrylic, lcellulose acetate, phenolic resins, urea, vinyl, `etc.,.among the various molding plastics,

and themild soft steels, hard steel alloys, manganese bronzes or other high melting point alloys for the centrifugal permanent mold casting method, and for powdered metals molded under high pressure either with or without thebinder. 'I'he backing and supporting material brings the bearing to standard size and the raceway ring is permanently bonded to it or inseparably mounted on it. The terms bonded or inseparably mounted include casting, moldin. or

forming the backingfmaterial about or againstv /the ring, controlled atmosphere brazing', brazing, sweating and soldering, or otherwise bonding or connecting so .they are inseparable `in use 4and in effect one piece.

Throughout the specification and claims I have used the terms 'casting" and molding as practically synonymous. as castings are formed I 4and shapedin molds and therefore casting is mon use which have excellent physical properties for this compression service, and the backing-up ring -members can be made in a die-casting machine, plastic molding machine, bypermanent mold method, or the centrifugal mold method,

etc.

The powder molding methods are particularly adapted for making the backing member and ders handled under very high pressures as in powder metallurgy, or the molding of metal powders mixed withl a properpercentage of a suit- .able binderund'er great pressure `in molds, the

binder 'acting asia bond for the metalparticles. The use of metallic'powders has particular value in thisinvention to insure' more rapid conducbroadly a molding operation. Also shaping and molding such materials as the non-ferrous plastics and powdered metal may be broadly called a casting operation as they are shapedl in nolds.

In all cases the backing material is of a degree of hardness to support the load from the raceway ring without change from its repose dimensions as contrasted-with a yieldable backing for vibration dampening applications. u

Although hardened steel has been mentioned as the material that would probably bemost generally used vfor the insert raceway ring, it is to be understood that the invention is not limited to the use of this material'. vThus, vfor example,

stainless steel is often required,v or the use of bronze or glass may be required asmaterials for special jobs, 'such as would be needed on process industries in the presence of acid in gaseous or liquid form. l

Havingthus set forth the nature of my inveny tion, what I claim is:

1. A dvice of the character described comprising--a bimaterial unitary structure including a supporting and mounting member comprising a central ring portion and an integral flange extending radially therefrom forming a supporting means lfor the member, asingle one piece preformed continuous hardened metal anti-friction bearing raceway ring mountedin the ring portion forming a track for the rolling elements and of suicient thickness to carry the normal rolling load, said supporting and mounting member being of more workable material than the raceway ring but of a degree of hardness to withstand the load without materially lchanging its repose dimensions, said flange being provided with a locating and mounting surface adapted to seat on a supporting surface on a supporting housingA or frame to locate said ring in the of the adjacent face of the ring portion so that it is spaced above this latter face and the side walls of the ring are exposed. Y

4. A device of the character described comprising a bimetal unitary structure including a supporting and mounting member comprising a central ring portion and an integral flange extending radially therefrom forming a supporting housing or frame, and said ring havingY an outer surface permanently bonded to the material of the ring portion to hold it permanently in a` given position in the supporting member Whereby the track surface may be nishedwithrespect to said locatingl and mounting surface after mounting of the ring in the supporting Amember and bonding it thereto so that the track surface may be brought into exact axial and concentric alignment; with the locating and mounting surface.

V2. A device of the character described comprising a bimetal .unitary structure including a supporting and mounting member comprising a central ring portion and an integral flange extending radially therefrom forming a supporting means for the member, a single one piece preformed continuous hardened metal anti-friction bearing raceway ring mounted in the ring portion forming a track for the rolling elements and of suiicient thickness to carry the normal rolling load,- said supporting and mounting member :being of different metal from the ring pressure cast to substantially finished size against means for the member, a single one piece preformed continuous hardened metal anti-friction bearing racewayY ring mounted in the ring portion forming a track for the rolling elements and being of sufficient thickness to carry the normal rolling load, said supporting and mounting memthe ring and of a degree of hardness to withstand the load Without materially changing its repose dimensions, said flange being provided with a locating and mounting surface adapted to seat on a supporting surface on a supporting housing or frame to locate said ring in the housing or frame, and said ring, having an outer surface permanently bonded to the cast metal of the permanently in a given position in' the support- `supporting and mounting member to hold it ing member whereby the track surface may be member, a single one piece preformed continuous' hardened metal anti-friction bearingraceway ring mounted in the ring portion and permanently Abonded theretoI by copper bracing in a controlled atmosphere, said"ring forming a track for the rolling elements and being of suflicient thickness to carry the Anormal rolling load, said supporting and mounting member being of a ber being of different and softer metal from the ring but of a degree of hardness to withstand the load without materially changing its repose dimensions, said flange being provided with a plane locating and mountingsurface extending transversely of the axis of the ring adapted to seat on a supporting surface on a supporting housing or frame to locate said ring in the housing or frame, and said ring having an outer surface permanently `bonded to the material ofthe ring portion to hold it permanently in a given position in the supporting member whereby the track surface may be nnishedwith respect to said locating and mounting surface after mounting of the ring in the supporting member and bonding itithereto so that the track surface may be located in exact V`axial and concentric alignment with the locating 'and mounting surface.

5. In a device o'f the character described including a housing or frame, one portion of the housing or frame having an opening therein for passage of a shaft and provided with a plane supporting surface about the opening and extending transversely of the shaft, a supporting and mounting member comprising a central ring portion and an integral flange' extending radially therefrom forming a supporting means for the member, a single one piece preformed continuous hardened metal anti-friction bearing raceway ring mounted in the ring portion forming a track for the rolling elements and of sufficient thickness to carry the normal rolling load, said supporting and mounting member being of different material from the raceway ring but of a degree of hardness to withstand the load without materially changing its repose dimensions, vsaid flangebeing provided with a locating and mountingsuraCe seated on said supporting surface to locate the raceway ring in the housing or frame, said ring havingafn outer surface permanently bonded to the material of the ring por- -tion 13a-'hold it permanently ina given position in thsupporting member whereby the track surface may be finished with respect to said locatsofter and more workable metal than the raceing and mountingurface after mounting of the ring in the supporting mem-ber and bonding it thereto so that tha track surface may be located in exact axial and concentric alignment with the locatingand mounting surface, and means for securing the flange to the housing or frame.

6. A device ofthe character described comprisformed continuous hardened metal anti-friction bearing raceway ring mounted in the ring prtion forming a track for the rolling elements and of sufficient thickness to carry the normal rolling load, said supporting andI mounting member being of different 4metal from the ring pressure cast to substantially finished size against the ring and of a degree of hardness -to'withstandthe load without materially changing its repose dimensions, said fiange being provided witha loeating' and mounting surface adapted to seat on a supporting surface on a supporting housing or frame to locate said ring in the housing or frame, said raceway ring being of less width than the ring portion of the mounting member vso that its side walls .are spaced inwardly of the side walls of said ring portion, and said raceway ring having an outer surface permanently bonded to the cast metal of the supporting and mounting member to hold it permanently in a given position in 7. A device of the character described comprising a bimaterial unitary substantially integral structure including a frame of the size and shape of the end frame of a motor or housingA and com.' prising a body portion and a central ring -portion integral with the body portion, a single one piece preformed continuous hardened metal anti-fricthickness to carry the normal rolling load, said frame being of different metal from the ring presl sure cast to substantially finished size against the ring and of a degree of hardness to withstand the load without materially changing its repose dimensions, said bodyportion being provided with a locating and mounting surface spaced radially remote from the ring and adjacent the outer periphery ofthe frame adapted to .seat on a supporting surface on the body section of a housing to mount the frame on the housing so as to form the end structure thereof and also to mount and locate the raceway ring in the housing, and said g raceway ring havin-g an outer surface permanentthe supporting memberwhereby the track sur- A 1y bonded to the material of the frame to hold it permanently in a given position in the frame whereby the track surface may be finished with respect to the locating and mounting surface after mountingk of the ring in the frame and bonding it thereto so that the track surface may be located in exactaxial and'- concentric alignment with the locating and mounting surface.

9. A device of the character described comprising a bimetal unitary substantially integral structure including alframe f the sizeand shape of the end frame of a motor or housing and comprising a ring portion and a body portion integral therewith and extending laterally outwardly therefrom and sh-aped to form the end frame, a single one piece preformed continuous hardened metal anti-friction bearing raceway ring mounted in the ring portion of the frame forming a tion bearing raceway ring mounted in the ring `portion of the frame forming a track for the rolling elements and of sufficient-thickness to carry the normal rolling load, said frame being of a more workable material than said ring but of a degree of hardness to withstand the load without materially changing its repose dimensions, said body portion extending outwardly away fro-m the ring and shaped to form the end frame and being provided with a locating and mounting surface adjacent the outer periphery thereof spaced radially remote from the central ring portion adapted to seat on a supporting surface on the body section of a housing to mount the frame on the housing so as to form the end structure thereof and also to mount and locate the raceway ring in the housing, and said raceway ring having an outer surface permanently bonded to the material of the frame to hold it permanently in a given position in the frame whereby the .track surface may be finished with respect to the locating and mounting surface after lmounting of the ring in the frame and bonding it thereto sov that the track surface may be brought into exact axial and .concentric alignment with the locating and mounting surface.

8. A device of the character `described comprising a bimetal unitary substantially integral structure including a frame of the size and Ashape y .track for the rolling elements and of suiicient thickness to carry the normal rolling load, said frame being mad-e of formed metal and of a degree of hardness to withstand rthe load without materially changing its repose dimensions, said body portion being providedwith a locating and mounting surface adjacent the outer periphery thereof spaced radially remote from. the ring portion adapted to seat on a supporting surface on the body section of a housing to mount the'frame on the housing so as to form the end structure thereof and also to mount and locate the race` way ring in the housing, said raceway ring hav? ing an outer surface permanently bonded to the .frame by copper brazing in a controlled atmosphere to hold it permanently in a given position in the frame whereby the track surface may be finished with respect to the locating and mounting surface after mounting of the ring in the frame and bonding it thereto so that the track surface maybe brought into exact axial and concentric alignment with the locating and mounting surface. Y

l0. A device of the character described comprising a bimetal unitary substantially integral structure including a frame of the size and shape of the end frame of a motor or housing and comprising a ringf portion and a body p0r- .tion integral therewith and extending laterally outwardly therefrom shaped to form the end frame, a single one piece preformed continuous hardened metal anti-friction bearing raceway ring mounted in the ring portion of the frame forming a track for the rolling elements and of sufficient thickness to carry the normal rolling load, said framevbeing formed of a dierent and lsofter metal from the ring but of a degree of hardness to withstand the loadwithout materially changing' its repose dimensions, said frame being of a greater width than the ring andV jacent surface of the ring portion of the Vframe so that it is spaced above this latter surface, said body portion being provided with a locating and mounting surface located radially remote from the ring and adjacent the outer periphery of the frame adapted to seat on a supporting surface on the body section of a housing to mount the frame on the housing so as to .the ring in the frame and bondingit thereto so that the track surface may be brought into exact axial and concentric alignment with the `locating and mounting face, 'and means for se-v porting surface extending transversely Aof the shaft, said end section comprising a birnaterial unitary substantially integral structure including a frame comprising a ring portion and a body portion integral therewith and extending laterally outwardly therefrom and shaped to'form the .end frame, a single one piece preformed continuous hardened metal anti-friction bearing raceway ring mounted in the ring portion of the frameforming a track for the rolling elements and of -sufficient thickness to carry the normal rolling load, said frame comprising a supporting member for the ring and being of diierent material pressure cast against the ring but, of

a degree of hardness to withstand the load without materially changing its repose dimensions, said body portion of .the frame being provided with a locating and mounting surface adjacent the outer periphery thereof spaced radially re` mote from the ring portion and seated on said supporting surface on the body section of the curing the end section tothe body section.

12.- A device of the character described comprising a, housing including a body section andan end section, a shaft within-thehousing, said body section being provided with adjacent supporting surfaces at right angles to each other and extending axially and radially with respect to the shaft, said end section comprising a bimetal unitary substantially integral structure including a frame comprising a ring portion and a. body portion integral' therewith and extending laterally outwardly therefrom and shaped to form the end frame, a single one piece preformed continuous' hardened metal. anti-friction bearing raceway ring mounted in the ring portion of the frame forming a track for the rolling elements and of Vsufficient thickness to carry the normal rolling load, said frame comprising a supporting member Vfor the ring' and of difrepose dimensions, `the track ring being of Aless widtn than thering portion of the frame so that its side walls are spaced inwardly of the side walls of said portion and the diameter of its face having the track being less than that of the corresponding embracing face of the ring housing to mount the end section on the hous ing so that it forms the end structure thereof and also to mount and locate the raceway ring in the housing, said raceway ring having an outer surface permanently bonded to the maportion so that it is'spaced inwardly of this face, said body portion of the frame being provided with axial and radial locating faces at right anf gles to each other located radially remote from the ring and seated on the Vsupporting surfaces of the Vbody section to mountthe frame on this section so that it forms theA end section of the housing and also to mount and locate the raceway ring in position in the housing, said raceway ring having an outer surface permanently bond- 

